Friction-clutch.



No, 887,53'7. PATENTED MAY 12, 1908.

' A. SIODERLING.

FRICTION CLUTCH.

Fuel- Tron FILED APR. 27'. 190a.

2 SHEETS-SHEET l.

9 SODERLING.

FRICTION CLUTCH.

APPLICATION ILED APR.'Z'!,1UO7.

ALFRED SODERL ING, OF CHICAGO, ILLINOIS.

FRIQTION-CLUTCH.

Specification of Letters Patent.

Patented May 12, 1908.

Application filed April 27, 1907. Serial No. 370,723.

To all whom it may concern: v

Be it known that I, ALFRED SODERLING, a citizen of the United States, residing at Chicoupling and uncoupling two independently revoluble members. such for example, as two shafts, or a shaft and a pulley.

"The object of the invention is to provide a clutch of improved construction, and to this end the invention consists in the features of novelty that are hereinafter described, reference being had to the accompanying drawings which are made a part of this specification, and in which,

Figure 1' is a central section of a clutch embodying the invention in its preferred form.

' Fig.2is asectional elevation of some of the parts thereof on a larger scale,,the plane of the section being indicated by the line 22, Fig. 1. Fig. 3 is a face view of a ring forming a part of the means for connecting the two clutch members or jaws. Fig. 4 is a face view of a stop-ring. Fig. 5 is a central section of a clutch embodying the'invention under a modification. Fig. 6 is a sectional elevation of a clutch embodying the invention under still another modification. Fig.

7 is a face view of 'a ring such as shown in Fig.

S under a modification.

Referring first, to the preferred form of the invention, A, and A", represent two shafts ca ableof revolving independently of each ot er, excepting when cou led together through-the medium of the c utch. To the shaft, A, a collar, B, is non-rotatively secured by means. of a key, I), or other suitable device and this collar has a tubular extension or sleeve, b, into which the end of the shaft, A, projects, a bushing, a, being in- .terposed'between them, so that they -tate**independently of each other. The clutch has two jaws, C, and D, having friction may rosurfaces which are adapted to directly engage each other, .the friction surface of the jaw C, being directly on the jaw itself and being in the form of an annular groove, 0, of

=truncate d V-shape, while the friction'surface of the jaw, D, is formed on a block, E, of

- wood or other suitable material secured to the jaw andhaving a friction surface complementary to the friction surface of the.

The jaw, O, has a hub consisting of a flange, 0, which is secured to the shaft, A, so as to be incapable of either sliding or rotating thereon, by means of a key, a, occupying grooves in their meeting faces, and a set screw engaging the key. The jaw, D, has a hub consisting of a flange, d, integral with the main body of the jaw and abushing (Z mounted u on the sleeve 1). The flange, (1, is mounted upon the bushing so as to be capable of limited longitudinal movement thereon, for the pur ose of adjustment as hereinafter (l8SCIll)( but is held against rotating thereon by a key, F, or some other suitable device. The bushing is non-rotatively secured to the sleeve, 1), by means of a key, G, or some other suitable device so that the jaw, D, with its composite hub, the sleeve 1), the collar, B, and the shaft, A, move together as a single part. The outer end of the bushing, d, is threaded and on to it is screwed a stop-ring, F, which engages the rear end of the flange, d, and holds it in place, the ring being split on one side, circumferentially as shown at, f, and the two parts on opposite sides of the split being perforated for'the reception of a screw, f, which has threaded engagement with one of said parts, whereby they may be drawn together and thereby cramp the ring and lock it in place on the bushing.

lVith the mechanism hereinafter described for opening and closing the jaws the movement is very slight and hence itbecomes necessary, from time to time, to adjust the parts in order to compensate for the wearing away of the friction urfaces. This is done by turning the stopering further on to the bushing and the result of this is to advance the friction surface of the jaw, D, toward the friction surface of the jaw, C. On its inner end the bushing, d, is provided with a radial flange, d, the rear face of which provides a shoulder which is engaged by a continuous ring, H. The ring being put in place upon the bushing before the bushing is inserted through the eye of the flange (Iv This ring carries equi-distant pairs of perforated lugs, h, and to these lugs are jointed links, I, said links being also jointed to the ends of the short arms of bell-crank levers, J, ,which levers are in turnfulcrumedtoperforated ears, j, on the jaw, C. The endsof the. long shaft, A, may revolve freely, carrying with it I '5 the entire hub of the jaw, D, is integral with: the body thereof and consists of afiange, d,

wear the'connections between t e jaws, C,

' ing in the short arm of the bell-crank lever, J, and threading it for receiving anadjusting nut,-i. In -this form of the invention the' 5 seen that one jawof the clutch is provided on I its inner side, or,.1n other words, the side adthat the long arms of the bell-crank levers will be'forced outward, and the links, I, to-

, jaw, D, will cause a relative movement of the 7 two .jaws toward each other with aconallowing the two jaws to revolve independthrough the medium of a ushing, a. flange d, providim H, is also integral ment with said shoulder and suitable mech:

crating said mechanism the aws may be novel characteristic of the improved clutch not shown in the drawing, is connected by any 'sultable means. With a clutch thus constructed it will .be'observ'ed that the the jaw, C, and all parts accessory thereto, including the ring, H, independentlyof the shaft A, and the jaw, D, w en the two jaws of the clutch are out of engagement. When the jaws are to be closed the collar, L, is shifted toward the jaw, C, with the result gether with the ring, II, will be drawn toward ihe jaw,'C. The-enga ement of the ring, H, with the annular shou der on the hub of the sequent engaging of their friction surfaces. The use of the mug, H, is advantageous 111 ently. of each other, and this permits more or l'esssliding of the friction surfaces one upon the other in the process of closing the jaws with a consequent gradual starting of the theretofore stationary member.

In the form of the invention shown in Fig.

which is loosely mounted u on the shaft, 'A, .The the shoulder for the ring, 'with the jaw, and this makes it necessary to form the 'ring in two parts as shown in Fig. 7 in order to assemble the parts. In this form of the in vention the shoulder, 11, is not adjustable relatively to the friction surface, E, of the jaw, D, so that inorder to com ensate forand D, are made adjustable. This may be done by passing the link, I,'through an openfriction surfaces of the jaws, C and 'D, do not directly engage each other, but engage the opposite faces of a friction ring, M, carried by a pulley, B, which isloos'ely mounted upon the shaft, A, through the medium of the bushing,a.'

.In both forms of the invention it will be jacent to the other jaw, with an annular shoulder, a ring is arranged so as to be 1novable longitudlnally into and out. of engageanism is carried by the other jaw and connected with said ringso that by properly op opened" and closed. This" is'the' principal andto it a .-number of advantagesaredue;

construction has no advantages overlthe composite hub, but the means of adjustment embodied in the composite hub are superior to an adjustment incorporated in the connections between the ring and the jaw carrying it. the friction surfaces of the two jaws'of the clutch are. preferable to their engagement with the third friction'device carried" by the pulley .or-other part to which power is to be transmitted. 'In this connection it may be Furthermore, the direct engagement of observed that while in Fig.1 the jaw, D, of

the clutch islshown as carrying acollar nonrotatrvely secured to a second shaft, 1t might with equal-facility carry a pulley, 0r, inv other words, the sleeve, I) of Fig. 1 may be a pulley loosely regarded as integral with mounted upon the-shaft, A.

The form-of the invention shownin Fig. '6.

differs from that shown in Fig. 1 only in that the jaw, D', has on its inner-side an additional annular shoulderd which overlaps and one gages the outer margin Ofthe'rin'g H. In this event it is necessary tofor'm the aw, D, in two longitudinal parts secured .together by flanges and bolts as shown. at D in Fig. 6. In fact, all of the parts of clutches of; large size are preferably formed in ,halves secured together, and the jaw, C, and ring H, are so shown in Figs. 6 and 7 -WhatI claim as new and desire to secure by Letters Patent, is, 3' In a friction clutch, the combination of 4 a pair of jaws relativelyniovable toward and from each otheryand cariying friction. surfaces, one of said aws having on its nner s1de an annular shoulder a loose ring adapted to engage said shoulder, and means supported by the other jaw and engaging said ring for moving it into and out of engagement with said annular shoulder, whereby the jaws are opened and closed.

2. In a friction clutch, the combination of a pair of jaws relatively movable toward and I from each other, one of said jaws having a hub provided on its inner portion with an an-' nular shoulder, a loose ring adapted to engage said shoulder, andineans sup orted by the. otherjaw and engaging said ring for moving it into and out of engagement'with Disreg'ai dingthe matters of adjustment and j assemblies oi th part-s. the integral hub opened and closed;v

$111 a friction clutch, the combinationof ITO.

from each other,

ovsilrde toward and lug friction surfaces, one of Sill with a removzuw end an annular said bushing in n engage said shoul I by the other jaw and moving it into and u; said shoulder, wherell g' and closed.

5. In s friction vii. a pair of jaws relativeig, :1 from each other and ens. faces, one of said jaws prising a flange and :1 busui; ing longitudinally adj us 1 11k and the bushing being pi end with an annular slumlder, a loose ring; adapted to engage said shoulder, and me: supported by the other jam and said ring for moving it into and mu gageinentwith said shoul ti jaws are opened and rlesea 6. In a friction clutch, damn .w: of

d and a pair of jaws rolat ii'iCilU'l'l surfrom each other, and'enrr feces, one of said jaws he a huh com-- prising a flange and a bushing, u whirl; said flange is movable longitudiimlly, means i'or preventing the relative rotation of the Range and lmshing'the bushing being prodwi :11 t its inner end with an annular shouliingg adapted to engage said m; means supported by the other '11 said ring for moving it into emeni with suid shoulder,

ere opened and closed. r im'rh, the roinhination of (\"lciiliWQlY movalde toward and h llli'l mi carrying friction suru-i' ixzwing :1 hub comr. t meshing, upon which T Y 2d, the outer end of the he: being threaded and the inner end ,u rhled with an annular shoulder a stopring screwed on to the threaded end of the bushing and engaging the flange aforesaid, means for preventing the relative rotation of hinge aforesaid and the bushing, a loose ensuring the nnnulur shoulder at the end of H10 bushing; and means supporied by ilh' ezhr-r jaw and engaging said ler moving it into and out of engagewith said :u'mulnr shoulder, whereby the jaws are opened and rlosed.

ALFRED StHJERLING.

i JllHDSSQS.

U. l. Hormxs, L. 

